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1. (a) How large is the linear momentum of a 10,000-kg truck traveling at a speed...

1. (a) How large is the linear momentum of a 10,000-kg truck traveling at a speed of
12.0 m / s? (b) How fast would a 2,000 kg wagon have to travel to have the same
linear momentum and the same kinetic energy? Ans: (a) p = 120,000 kg m / s, (b) p = 60 m / s

2. A 0.0450 kg golf ball at rest acquires a speed of 25.0 m / s when hit by a club.
If the average contact time is 2.0 ms, what force acts on the ball? Ans: F = 563 N


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